[*] Binary protection state of pkcs1-conv

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[*] Function printf tear down of pkcs1-conv

    ; assembly                           | /* r2dec pseudo code output */

                                         | /* /logs/firmware/patool_extraction/rootfs.img_unblob_extracted/rootfs.img_extract/0-80367616.squashfs_v4_le_extract/usr/bin/pkcs1-conv @ 0x19c4 */

                                         | #include <stdint.h>

                                         |  

    ; (fcn) fcn.000019c4 ()              | void fcn_000019c4 () {

                                         |     int16_t var_0h;

                                         |     int16_t var_4h;

                                         |     int32_t var_4h_3;

                                         |     int16_t var_10h;

                                         |     int16_t var_4h_2;

                                         |     if (? >= ?) {

    0x000019c4 strlt fp, [r0, -0x40f]    |         *((r0 - 0x40f)) = fp;

                                         |     }

    0x000019c8 sub sp, 0xc               |     

    0x000019ca add r3, sp, 0x10          |     r3 += var_10h;

    0x000019cc ldr.w lr, [pc, 0x50]      |     

    0x000019d0 ldr.w ip, [pc, 0x50]      |     ip = *(0x1a24);

    0x000019d4 ldr r1, [pc, 0x50]        |     

    0x000019d6 add lr, pc                |     lr = 0x33fa;

    0x000019d8 ldr r2, [r3], 4           |     r2 = *(r3);

                                         |     r3 += 4;

    0x000019dc ldr.w ip, [lr, ip]        |     

    0x000019e0 ldr r0, [pc, 0x48]        |     r0 = *(0x1a2c);

    0x000019e2 add r1, pc                |     r1 = 0x340e;

    0x000019e4 ldr.w ip, [ip]            |     ip = *(0x33fa);

    0x000019e8 str.w ip, [sp, 4]         |     __asm ("str.w ip, [var_4h]");

    0x000019ec mov.w ip, 0               |     

    0x000019f0 str r3, [sp]              |     *(sp) = r3;

    0x000019f2 ldr r0, [r1, r0]          |     

    0x000019f4 movs r1, 1                |     r1 = 1;

    0x000019f6 ldr r0, [r0]              |     r0 = *(0x340e);

    0x000019f8 blx 0xea4                 |     vfprintf_chk ()

    0x000019fc ldr r2, [pc, 0x30]        |     

    0x000019fe ldr r3, [pc, 0x24]        |     r3 = *(0x1a26);

    0x00001a00 add r2, pc                |     r2 = 0x3434;

    0x00001a02 ldr r3, [r2, r3]          |     r3 = *(0x3434);

    0x00001a04 ldr r2, [r3]              |     r2 = *(0x3434);

    0x00001a06 ldr r3, [sp, 4]           |     r3 = var_4h;

    0x00001a08 eors r2, r3               |     r2 ^= r3;

    0x00001a0a mov.w r3, 0               |     r3 = 0;

                                         |     if (r2 == r3) {

    0x00001a0e bne 0x1a1a                |         

    0x00001a10 add sp, 0xc               |         

    0x00001a12 ldr lr, [sp], 4           |         

    0x00001a16 add sp, 0x10              |         

    0x00001a18 bx lr                     |         return;

                                         |     }

    0x00001a1a blx 0xed4                 |     stack_chk_fail ();

    0x00001a1e nop                       |     

    0x00001a20 asrs r2, r7, 0x14         |     r2 = r7 >> 0x14;

    0x00001a22 movs r0, r0               |     

    0x00001a24 lsls r0, r2, 3            |     r0 = r2 << 3;

    0x00001a26 movs r0, r0               |     

    0x00001a28 asrs r6, r5, 0x14         |     r6 = r5 >> 0x14;

    0x00001a2a movs r0, r0               |     

    0x00001a2c lsls r0, r4, 3            |     r0 = r4 << 3;

    0x00001a2e movs r0, r0               |     

    0x00001a30 asrs r0, r2, 0x14         |     r0 = r2 >> 0x14;

    0x00001a32 movs r0, r0               |     

    0x00001a34 push {r3, lr}             |     

    0x00001a36 blx 0xebc                 |     malloc (r0);

    0x00001a3a ldr r3, [pc, 0x20]        |     

    0x00001a3c add r3, pc                |     r3 = 0x349e;

                                         |     if (r0 != 0) {

    0x00001a3e cbz r0, 0x1a42            |         

    0x00001a40 pop {r3, pc}              |         

                                         |     }

    0x00001a42 ldr.w ip, [pc, 0x1c]      |     ip = *(0x1a62);

    0x00001a46 movs r2, 0x1a             |     r2 = 0x1a;

    0x00001a48 ldr r0, [pc, 0x18]        |     

    0x00001a4a movs r1, 1                |     r1 = 1;

    0x00001a4c ldr.w r3, [r3, ip]        |     r3 = *((r3 + ip));

    0x00001a50 add r0, pc                |     r0 = 0x34b8;

    0x00001a52 ldr r3, [r3]              |     r3 = *(r3);

    0x00001a54 blx 0xeb0                 |     r0 = fwrite (r0, r1, r2, r3);

    0x00001a58 blx 0xda8                 |     abort ();

    0x00001a5c asrs r4, r2, 0x13         |     r4 = r2 >> 0x13;

    0x00001a5e movs r0, r0               |     

    0x00001a60 lsls r0, r4, 3            |     r0 = r4 << 3;

    0x00001a62 movs r0, r0               |     

    0x00001a64 lsls r0, r1, 0xe          |     r0 = r1 << 0xe;

    0x00001a66 movs r0, r0               |     

                                         |     /* [14] -r-x section size 8 named .fini */

    0x00001a68 ands r0, r1               |     r0 &= r1;

    0x00001a6a invalid                   |     

                                         | }

[*] Function printf used 2 times pkcs1-conv